body{
    padding: 0;
    margin: 0;
}

.main .center{
    width: 400px;
    height: 200px;
    text-align: center;
    margin: auto;
}
.main .center .user{
    padding-top: 50px;
}
.main .center .user,.cbs,.isdate{
    width: 400px;
    height: 50px;
    line-height: 50px;
    font-family: 微软雅黑;
    font-size: 20px;
}
.main .center .cbs{
    width: 440px;
}
.main .center .isdate >input{
    width: 170px;
    height: 15px;
}
.main .foot{
    width: 400px;
    height: 200px;
    margin: auto;
    text-align: center;
}
.main .foot >input{
    margin-top: 50px;
    width: 90px;
    height: 25px;
}